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Click on the Google Preview image above to read some pages of this book!(Formatting may be different depending on your device and eBook type.)

Enter the world of Geronimo Stilton, where another funny adventure is always right around the corner. Each book is a fast-paced adventure with lively art and a unique format kids 7-10 will love.

I admit it. I'm not much of a muscle mouse. So when I accidentally got signed up for the Mouse Island Marathon, I was so shocked that I lost my squeak! Me, run a marathon? But my friends and family were determined to help me cross that finish line. Holey cheese, I was never going to make it!